Finding the Fourth Proportional to 291,640.20, 437,460.30 and 197,161.80
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Solution
The fourth proportional to 291,640.20, 437,460.30 and 197,161.80 is: 295,742.70
Step by Step Solution
- Step 1: Write the proportion equation
291,640.20 : 437,460.30 = 197,161.80 : x - Step 2: Convert to fraction form
291,640.20/437,460.30 = 197,161.80/x - Step 3: Cross multiply
291,640.20x = 437,460.30 × 197,161.80 - Step 4: Simplify right side
291,640.20x = 86,250,460,176.54 - Step 5: Solve for x
x = 86,250,460,176.54/291,640.20 - Step 6: Final answer
x = 295,742.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.